通过MIMO雷达模式匹配产生的基于时频脊的心率估计

IF 2.2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Sensors Letters Pub Date : 2025-08-07 DOI:10.1109/LSENS.2025.3596565

Naoki Honma;Kentaro Murata;Morio Iwai;Koichiro Kobayashi

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引用次数: 0

摘要

在微波非接触式心率估计中，由于呼吸谐波的干扰，心率估计的准确性降低。已经提出了各种方法来减轻呼吸的影响；然而，这些方法大多是在10秒或更长时间的观察期内评估平均心率，因此不可能观察到在这段时间内心率的波动。在这封信中，我们提出了一种通过模式匹配产生的基于时频脊的心率估计技术，该技术适用于基于雷达的系统。来自14名参与者的实验结果表明，在6秒的观察时间内，心率估计精度达到0.8 bpm（第50百分位数）。

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TF-RHYTHMM: Time–Frequency Ridge-Based Heart Rate Estimation Yielded Through Mode Matching for MIMO Radar

In noncontact heart rate estimation using microwaves, the accuracy of heart rate estimation decreases due to interference from respiratory harmonics. Various methods have been proposed to mitigate the influence of respiration; however, most of these methods evaluate the average heart rate over an observation period of 10 s or longer, making it impossible to observe heart rate fluctuations within that interval. In this letter, we propose a technique called time–frequency ridge-based heart-rate estimation yielded through mode matching, which is suitable for radar-based systems. Experimental results from 14 participants demonstrated that a heart rate estimation accuracy of 0.8 bpm (50th percentile) was achieved with an observation time of 6 s.

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来源期刊

IEEE Sensors Letters Engineering-Electrical and Electronic Engineering

CiteScore

3.50

自引率

7.10%

发文量

194